Sofa



FIG. 1 is a front view of the sofa showing the headrests in a loweredposition;

FIG. 2 is a front view of the sofa showing one headrest in a raisedposition and one headrest in a lowered position;

FIG. 3 is a front view of the sofa showing both headrests in a raisedposition;

FIG. 4 is a left side perspective view of the sofa showing bothheadrests in a raised position;

FIG. 5 left side view of the sofa showing the headrests in a raisedposition; and,

FIG. 6 is a top view of the sofa showing both headrests in a raisedposition.

The portions of the sofa shown in broken lines form no part of theclaimed design.

CLAIM The ornamental design for a sofa, as shown and described.